appendSize

Helper method to add size properties to the specified type.
If present, the string "{0}" will be replaced with the size definition;
otherwise the size definition will be appended to the type name.
If your database has column types that don't allow size definitions,
override this method to return the unaltered type name for columns of
those types (or add the type names to the
fixedSizeTypeNameSet).

Some databases support "type modifiers" for example the unsigned
"modifier" in MySQL. In these cases the size should go between the type
and the "modifier", instead of after the modifier. For example
CREATE table FOO ( myint INT (10) UNSIGNED . . .) instead of
CREATE table FOO ( myint INT UNSIGNED (10) . . .).
Type modifiers should be added to typeModifierSet in
subclasses.